Let me just say that these are my very first set of high quality cans..ever and that I'm completely new to all of this. That being said, the Grado SR60i's have certainly changed the way I listen to music..probably forever! The first thing I noticed once I got used their sound signature was the rich mid tones where all the instruments and vocals shine. They weren't kidding when they say grados are king of rock, play some RHCP Stadium Arcadium lossless and prepare to be blown away. These things are also pretty easy to drive. You can just plug them...